diff --git a/config/config.sample.php b/config/config.sample.php
index d8780324cb00c..37871669309e9 100644
--- a/config/config.sample.php
+++ b/config/config.sample.php
@@ -1654,7 +1654,7 @@
  *
  * Defaults to ``none``
  */
-'memcache.local' => '\OC\Memcache\APCu',
+'memcache.local' => '\\OC\\Memcache\\APCu',
 
 /**
  * Memory caching backend for distributed data
@@ -1664,7 +1664,7 @@
  *
  * Defaults to ``none``
  */
-'memcache.distributed' => '\OC\Memcache\Memcached',
+'memcache.distributed' => '\\OC\\Memcache\\Memcached',
 
 /**
  * Connection details for Redis to use for memory caching in a single server configuration.